U21402 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of U21402

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GBT U21402

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This page is mainly introduced the U21402 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of U21402,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
U21402
  • Steel Garde:U21402
  • Type:Special Alloy
  • Country:China
  • Standard:GBT
  • Application:China structural steel and alloy steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 154~663 σb/MPa
Yield Strength 680 σ 0.2 ≥/MPa
Elongation 24 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 852~586 -
HRC 30 -

Physical Properties

Thermal expansion 38-12 e-6/K
Thermal conductivity 33-11 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 3702-0514 째C
Density 5238-6359 kg/m3
Resistivity 0.50-0.60 Ohm.mm2/m
     

Heat Treatment Regime

Annealing

Quenching

Tempering

Normalizing

Q & T

Size Availability

Steel Grade Specification Processing range(mm)
U21402 Special Alloy Round Bar and Hollow Bar Φ1 to Φ2000
Square and Flat Steel Φ10 to Φ100
Plate and Sheet 0.08-800(Thickness)*10-1500(Width)*Length
Tube or Pipe OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
Coil and Strip Steel THK:0.1mm Width:1500mm
Forged Ring/Cylindrical/Disk

Technical specification/standard for download

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